For the Common Allotropes of Carbon (Graphite and Diamond),C(gr)

question 23

Multiple Choice

For the common allotropes of carbon (graphite and diamond) ,C(gr) C(dia) with equilibrium constant K = 0.32.The molar volumes of graphite and diamond are,respectively, 5.30 cm³/mol and 3.42 cm³/mol; ΔHf of diamond is 1.90 kJ/mol.These data suggest that the formation of diamond is favored at

• A)low temperatures and low pressures.
• B)high temperatures and low pressures.
• C)low temperatures and high pressures.
• D)high temperatures and high pressures.
• E)None of the is correct.

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Definitions:

Rule of Nines

A method used in the assessment of burns, dividing the body into sections of 9% (or multiples thereof) to estimate the total area affected.

Sunburn

Damage to the skin resulting from excessive exposure to ultraviolet (UV) radiation, usually from the sun, causing redness, pain, and sometimes blistering.

Third Degree

Relates to the most severe classification of burns, involving full thickness damage through all layers of the skin, leading to significant injury.

Solar Keratosis

A rough, scaly patch on the skin caused by years of sun exposure, often considered a precancerous growth.